JPH0238510B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for managing parallel elevator cars as a group.

Generally, depending on traffic conditions within a building, it is required to prioritize elevator service on certain floors over other floors. For example, during morning work hours,
Since people often board the train ascending from the main floor (lobby floor), it is necessary to provide better service on the main floor than on other floors, and during lunch hours, many people board the train from the dining room floor. Therefore, it is necessary to prioritize the service on the dining room floor. In addition to specific floors, service on floors where the service condition is particularly poor, such as floors where the car has been passed because the car is full, or floors where waiting passengers are left unstacked at the landing, is also considered. It is also necessary to give priority to this.

Recently, when assigning hall calls to cars, the predicted waiting time for each hall call (hereinafter referred to as predicted waiting time) is calculated, and the predicted waiting time is used to shorten the waiting time for each hall call. For example, a method is being considered in which calls are assigned to the car with the minimum sum of the squares of predicted waiting times.

In the above-mentioned allocation method, only the length of the waiting time of each hall call is used as the evaluation value of the service status of that call. That is, it is assumed that the longer the waiting time is, the worse the service condition will be, and calls are allocated so that the waiting time is equally short at each landing. However, as mentioned above, the service status of a hall call is not just the waiting time for the call, but also the number of passengers waiting at the hall and the special characteristics of the hall (such as a conference room or a boardroom).
It also depends on In addition, if the train is packed to capacity or left unloaded at the boarding area, the waiting time will be longer and the customer's dissatisfaction will increase, but the service status will also be affected by such situations.

This invention improves the above-mentioned problem. When allocating a hall call based on the evaluation value of each hall call, the above evaluation value is modified according to the traffic condition, the special characteristics of each hall, and the service status, and priority service is given. To provide an elevator group management device capable of alleviating the dissatisfaction of waiting customers by giving appropriate priority service to a necessary landing.

Hereinafter, an embodiment in which the present invention is applied to a landing in the ascending direction of the fourth floor will be described with reference to FIGS. 1 to 3. For convenience of explanation, a case where three machines, No. 1 to No. 3, are installed will be shown.

In Figure 1, 1 is a hall call registration signal that is "1" when a 4th floor ascending call is registered, and is "0" otherwise, and 2 is a hall call registration signal that changes from "0" to "1" at the input signal at point I.
The timer starts counting the time when the timer reaches 0, and is reset to zero when the input signal at point I changes from 1 to 0.The timer measures the time that has elapsed since the hall call was registered (hereinafter referred to as registration time). The registration time represents the waiting time up to the present time.) A signal 3 is output. 4 sets coefficient signals 5 and 6 for correcting the registration time signal 3. This correction coefficient setting circuit corresponds to calls going up to the fourth floor, and is a priority setting means for giving priority to the calls going up the fourth floor. A circuit 7 corrects the registration time signal 3 and outputs a corrected registration time (hereinafter referred to as corrected registration time) signal 8. 9 is a multiplier, 10 is an adder, 1
1 is I when a signal of "1" is input to point G
This is a gate circuit that outputs the input signal at point as is and outputs zero when a signal of "0" is input to point G. It is assumed that the fourth floor is used as a general office.

FIG. 2 is an example of a circuit for detecting that the first car passes the 4th floor ascending call with a full number of people, and similar circuits are provided for the second and third cars.

In the figure, 12 is an assigned call signal that becomes "1" when a 4th floor ascending call is assigned to No. 1 car, and 13 is an assigned call signal that becomes "1" only when the car load of No. 1 car is 80% or more of the rated load. 14 is a car position signal that becomes "1" when car No. 1 is in the ascending direction and is on the 4th floor. 15 is a car direction signal that becomes "1" when car No. 1 is in the ascending direction and "0" when it is in the descending direction. , 16 is a car call signal that becomes "1" only when the 1st car is waiting for a car call on the 4th floor, 17 is a NAND gate, 18 is an AND gate, and 18a is the output when the 1st car passes the 4th floor ascending call. This is a full-passage detection signal that waits for a pulse of "1".

FIG. 3 is an example of the correction coefficient setting circuit 4, and 18a, 18b, and 18c in the figure are numbers 1 to 3, respectively.
Full passage detection signal for the call to go up to the 4th floor of the car,
20 is a circuit for detecting the number of times of full passage after the 4th floor ascending call has been registered, which counts and outputs a signal 21 for the number of consecutive full passages, 22 is an OR gate, and 23 counts the pulses of the signal input to point I. When a signal of "1" is input to the R point of the pulse counter, it is reset to zero. 24, 25 are not gates, 2
6 and 27 are the characteristics of the landing on the 4th floor in the ascending direction (office)
The calculation circuit 27 is a circuit that calculates correction coefficient signals 5 and 6 depending on the traffic condition, service status, and traffic condition, respectively, and the calculation circuit 27 has a completely similar circuit configuration to the calculation circuit 26. 8 is a multiplier, 29 is an adder, 30 is G ₁
When the input signal at point I is " ₁ ", the input signal at point I is output as output signal 31, and when the input signal at point G is " ₁ ", the input signal at _point I is output as output signal 31. 32 and 33 are constant value signals related to the full passage of the 4th floor ascending call, and 34 is a traffic signal that becomes "1" only when it detects that traffic in the ascending direction is congested, and becomes "0" otherwise. Status signals 36 and 37 are constant value signals set according to the characteristics of the landing in the 4th floor up direction when the traffic status signal 34 is "0", and 38 and 39 are 4th floor up when the traffic status signal 34 is "1". This is a constant value signal set according to the characteristics of the landing area in the direction.

Suppose that 15 seconds have passed since the call to go up to the fourth floor was registered. Since the registered time signal 3 is 15 seconds and is output from the timer 2, when the correction coefficient signals 5 and 6 are set to 1 second and 2 seconds, respectively, the multiplier 9 and adder 10 15×1+2=17 seconds is input to point I in . Since "1" of the registration signal 1 for the fourth-floor ascending call is input to the G point of the gate circuit 11, the corrected registration time signal 8 is output as 17 seconds. On the other hand, when the 4th floor climbing call is answered by the car and the registration signal 1 is reset, "0" is input to the G point of the gate circuit 11, and the corrected registration time signal 8 is output as 0 seconds. Ru.

Next, let us consider a case where, when the 4th floor ascending call is assigned to the No. 1 car, the 1st car is full and the 4th floor ascending call is fully occupied (Figure 2). first,
The assigned call signal 12 is "1", the full signal 13 is "1", the car direction signal 15 is "1", the car call signal 16 is "0", and the output of the NAND gate 17 is "1". When the car is on the third floor, the car position signal 14 is "0", and the AND gate 1
The output signal 18a of No. 8 is "0". Next, when the first car reaches the fourth floor, the car position signal 14 becomes "1", so the output signal 18a of the AND gate 18 becomes "1" while passing through the landing in the ascending direction of the fourth floor. Further, when the car passes through the landing in the ascending direction of the fourth floor and reaches the fifth floor, the car position signal 14 becomes "0" again, and the output signal 18a of the AND gate 18 also becomes "0" again. In this way, when the car a passes the fourth-floor ascending call full, the full passage detection signal 18a having a pulse of "1" is obtained.

In the correction coefficient setting circuit 4 shown in FIG. 3, a correction coefficient is set depending on the number of times the vehicle passes through the vehicle fully.
Now, suppose that the fourth floor ascending call has just been fully passed by car No. 1 for the first time after the call was registered, and the fully occupied passage detection signal 18a is inputted to point I of the pulse counter 23 via the OR gate 22. The contents of the pulse counter 23 are counted up to 1, and the full passage number signal 21 becomes 1, but the constant value signal 32
is set to, for example, 0.5, then multiplier 2
8, 0.5×1=0.5 is input to the adder 29,
Coefficient signal 5 will increase by 0.5. Similarly, if the constant value signal 33 is set to 10 seconds, the coefficient signal 6 will also increase by 10×1=10 seconds. After the car is full, the call for going up to the 4th floor is reassigned to an appropriate car other than car No. 1, and when that car is answered, the call is cancelled. Therefore,
Since the hall call registration signal 1 becomes "0" and the output signal of the not gate 4 becomes "1", the contents of the pulse counter 23 are reset to zero.

Furthermore, the setting values of the correction coefficient signals 5 and 6 can be changed depending on the traffic condition. Currently, under normal traffic conditions (traffic status signal 34 = "0"), there are no cases where the boarding area leading up to the 4th floor is full, and considering the special characteristics of the boarding area leading up to the 4th floor. Consider a case where the constant value signal 36 is set to 1 and the constant value signal 37 is set to 2 seconds. At this time, selection circuit 3
Since the output signal "1" of the not gate 25 is input to the _G2 point of 0, the output signal 31 of the selection circuit 30 becomes 1, which is equal to the input signal of the _I2 point.
Since the output signal (=0) of the multiplier 28 and the output signal 31 (=1) are input to the adder 29, the coefficient signal 5 is outputted as 0+1=1. Coefficient signal 6
Similarly, 0+2=2 seconds is output.

Next, consider a case where traffic in the upward direction is congested and this is detected (traffic status signal 34 is "1").
When the ascending direction is crowded, it is thought that the number of passengers coming from the landing on the 4th floor ascending direction will increase, so the constant value signal 38,3
9 is set to 1.5 and 10 seconds, respectively, a signal of "1" is input to the G ₁ point of the selection circuit 30, so the output signal 31 is equal to the input signal of the I ₁ point.
It becomes 1.5. Therefore, coefficient signal 5 is sent to adder 2
9 outputs 0+1.5=1.5. Coefficient signal 6
Similarly, 0+10=10 seconds is output. In this way, under normal traffic conditions, a 4th floor up call with a registration time of 15 seconds will be treated as an up call with a registration time of 1 x 15 + 2 = 17 seconds, whereas in the up direction congestion, 1.5 x 15 + 10
= 32.5 seconds, and the service of the 4th floor ascending call is considered to be more important.

In this example, the registration time of a hall call was modified according to the traffic conditions, the peculiarity of the hall, and the number of times the hall passed through the hall, and the service status was evaluated as a call that apparently took a long time to register. The conditions for setting a correction coefficient for a hall call are: (a) the number of consecutive times when the hall is fully loaded; (b) the length of time the call is registered when the hall is fully loaded; (c) the number of times when the hall is fully loaded. Number of customers waiting (d) Number of times the forecast is missed (cars other than the forecasted car arrive first by car call) (e) Length of call registration time when the forecast is missed (f) The forecast is The time elapsed since the forecast light was turned on when the forecast was incorrect (hereinafter referred to as forecast delay time) (g) Number of customers waiting when the forecast was incorrect (h) Number of consecutive times that full and unfilled cargoes occurred (k) Full Number of waiting customers left unloaded (k) Length of call registration time when full backlog occurs (sa) Length of forecast delay time or predicted value of forecast delay time (c) Number of waiting passengers or predicted waiting time Number of customers (s) This may occur when a predicted car malfunctions and service is no longer available. In addition, the characteristics of each landing are based on the structure of the building, such as being on the basement floor, the entrance floor, the rooftop floor, or a floor with a small number of serviceable cars. Characteristics can be considered depending on the purpose of use, such as a dining floor, a floor with conference rooms, a floor with executive offices, etc.

In addition, in this embodiment, the length of registration time for a hall call was modified to make it appear longer, but the predicted waiting time for a hall call (the expected time until the car arrives at the hall for the above call, i.e. (It is determined by the sum of the expected arrival time and the call registration time.) It may be modified in the same manner as described above. For example, it is only necessary to replace the registered time signal 3 in FIG. 1 with a predicted waiting time signal calculated by a known predicted waiting time calculation device. Further, the revised predicted waiting time may be calculated as the sum of the revised registration time and the predicted arrival time calculated by a known predicted arrival time calculation device.

Further, the function for modifying the waiting time is not limited to a linear expression, and various functions such as an n-dimensional expression are generally considered.

When the waiting time (registered time or predicted waiting time) is corrected as described above, hall calls are allocated using the corrected waiting time.

For example, a method may be considered in which the call selected as the call to be allocated is allocated to the car that has the minimum value obtained by adding the square value of the corrected predicted waiting time for all hall calls. In this method, the predicted waiting time is squared, so as the waiting time becomes longer, the degree of weighting increases at an accelerating rate, and allocation is performed with greater emphasis on calls with longer waiting times. As a result, the occurrence of long waiting times can be reduced. Therefore, even if the predicted waiting time of a priority call is somewhat shorter than the predicted waiting time of other calls, it will be treated as a call with apparently longer waiting time than the other calls mentioned above, so The proportion of the evaluation value (that is, the sum of the squares of the predicted waiting times) is increased and given importance, and the waiting time of the priority call is also relatively shortened compared to other calls. It goes without saying that any allocation method may be used as long as it is based on an allocation evaluation value that involves a relative comparison of waiting time with other calls.

As described above, the present invention provides an elevator group management system in which an evaluation value is obtained using the waiting time of a hall call, and a hall call is assigned to a car with a smaller evaluation value. is corrected to a large value and the evaluation value is calculated using this corrected waiting time, so that a corresponding response is applied to a hall call that requires relatively priority service among multiple hall calls. Priority service can be given.

[Brief explanation of drawings]

1 to 3 show an embodiment of an elevator group management device according to the present invention, in which FIG. 1 is a circuit diagram for correcting the registration time of hall calls, and FIG. 2 is a circuit diagram for detecting full passage. FIG. 3 is a correction coefficient setting circuit diagram. 1...4th floor climbing call registration signal, 3...Same registration time signal on the left, 4...correction coefficient setting circuit, 5, 6...
... Correction coefficient signal, 7 ... Correction circuit, 8 ... Correction registration time signal, 18a to 18c ... Car 1 to No. 3 4th floor ascending call full passage detection signal, 20... Full passage number detection circuit, 21... Same left number of times signal, 26,
27... Arithmetic circuit, 32, 33... Constant value signal,
34...Traffic status signal, 36-39...Constant value signal. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. Calculate the waiting time for each landing call for multiple floors serviced by multiple cars, calculate the evaluation value using this waiting time,
In an elevator group control device that allocates the hall calls to the cars with the smaller evaluation values, the more priority a hall call should have, the more prioritized the hall call is, the higher the priority is given to the other hall calls. A priority setting means for comparing and setting the priority to a larger value, and a correction means for modifying the waiting time of each hall call to a larger value as the priority according to the priority setting means becomes larger,
An elevator group management device characterized in that the evaluation value is calculated based on the hall call waiting time corrected by the correction means.